Oh come on. The hot sex joke was funny. Does she have no sense of humor or does she just not respond to your sexual jokes?
Yeah, I'm with you on the confusion over a blended Buddhist/Jewish family putting up Christmas lights.
I think I would respectfully tell her that although you mean to cause no trouble in her world, you don't want to put lights up this year, as neither of you celebrate the holiday and you will be gone anyway. Then lovingly detach yourself from the ensuing drama, cause you know it will come!
Say, I had a conversation with my H about a week ago in which I relayed some of the thoughts I had after reading Lillieperl's Begrudging Respect thread. I told him that, though he took his religious fervor entirely too far, eventually I came to respect his devotion to our faith. The fact that I could not budge him from his devotion made me stand back and say, Wow he is really something! I will not bore you with the details of the conversation but at the end of my speech, he turned to me and said, "You respect me for that?!?" He was so surprised! And delighted.
I'm sure that he never envisioned hearing me say that in a million years. All I have ever said to him about his faith were negative words that mostly involved how his faith took him away from me, etc.
So keep the faith that your W might one day view you in a different light, with begrudging respect.